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R D Blandford

Explore the profile of R D Blandford including associated specialties, affiliations and a list of published articles. Areas
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Articles 33
Citations 78
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Recent Articles
1.
Ajello M, Baldini L, Barbiellini G, Bastieri D, Bellazzini R, Bissaldi E, et al.
Astrophys J . 2022 Jan; 863(2). PMID: 35027772
We use joint observations by the X-ray Telescope (XRT) and the Large Area Telescope (LAT) of gamma-ray burst (GRB) afterglows to investigate the nature of the long-lived high-energy emission observed...
2.
Barbiellini G, Bastieri D, Bechtol K, Bellazzini R, Blandford R, Borgland A, et al.
Astrophys J . 2021 Oct; 784(2). PMID: 34646038
Observations of occultations of bright -ray sources by the Sun may reveal predicted pair halos around blazars andor new physics, such as, e.g., hypothetical light dark matter particles-axions. We use...
3.
Wilkins D, Gallo L, Costantini E, Brandt W, Blandford R
Nature . 2021 Jul; 595(7869):657-660. PMID: 34321670
The innermost regions of accretion disks around black holes are strongly irradiated by X-rays that are emitted from a highly variable, compact corona, in the immediate vicinity of the black...
4.
Ackermann M, Ajello M, Albert A, Atwood W, Baldini L, Barbiellini G, et al.
Phys Rev D . 2020 Aug; 93(8):082001. PMID: 32743154
We have measured the gamma-ray emission spectrum of the Moon using the data collected by the Large Area Telescope onboard the Fermi satellite during its first seven years of operation,...
5.
Ackermann M, Ajello M, Baldini L, Ballet J, Barbiellini G, Bastieri D, et al.
Phys Rev Lett . 2019 Jan; 121(24):241101. PMID: 30608723
The gamma-ray sky has been observed with unprecedented accuracy in the last decade by the Fermi -large area telescope (LAT), allowing us to resolve and understand the high-energy Universe. The...
6.
Ajello M, Albert A, Anderson B, Baldini L, Barbiellini G, Bastieri D, et al.
Phys Rev Lett . 2016 May; 116(16):161101. PMID: 27152783
We report on the search for spectral irregularities induced by oscillations between photons and axionlike-particles (ALPs) in the γ-ray spectrum of NGC 1275, the central galaxy of the Perseus cluster....
7.
Ackermann M, Ajello M, Albert A, Atwood W, Baldini L, Ballet J, et al.
Phys Rev Lett . 2016 Apr; 116(15):151105. PMID: 27127954
The Fermi Large Area Telescope (LAT) Collaboration has recently released a catalog of 360 sources detected above 50 GeV (2FHL). This catalog was obtained using 80 months of data re-processed...
8.
Ackermann M, Albert A, Anderson B, Atwood W, Baldini L, Barbiellini G, et al.
Phys Rev Lett . 2015 Dec; 115(23):231301. PMID: 26684107
The dwarf spheroidal satellite galaxies (dSphs) of the Milky Way are some of the most dark matter (DM) dominated objects known. We report on γ-ray observations of Milky Way dSphs...
9.
Blandford R
Science . 2015 Mar; 347(6226):1103-8. PMID: 25745165
One hundred years after its birth, general relativity has become a highly successful physical theory in the sense that it has passed a large number of experimental and observational tests...
10.
Ackermann M, Ajello M, Albert A, Allafort A, Baldini L, Barbiellini G, et al.
Phys Rev Lett . 2014 May; 112(15):151103. PMID: 24785023
Recent accurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA reveal an unexpected hardening in the proton and He spectra above a few hundred GeV, a gradual softening...